Supporting-idler for belt conveyers.



s. P. JooR. Y SUPPORTING IDLER FOR BELT GONVBYBRS'.

Y APPLICATION FILED MAY 11, 1911. 059,965,` Patented Apr. 22, 1913 COLUMBIA PLANonR/Pn co.. WASHINGTON, n f* STT@ PATENT fi;

u SAMUEL F. J' OOR, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO JCOR ENGINEERING COMPANY.

SUPPORTING-IDLER FOR BELT CONVEYERS.

Specification of Letters Patent.

Patented Apr. 22, 1913.

Application ala May 11, 1911. serial no. 626,517.

To all 'whom t may concern Be it known that I, SAMUEL F. Joon, a citizen of the Unit-ed States, residing in the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Supporting- Idlers for Belt Conveyers, of which the following is a specication, reference being had therein to the accompanying drawing.

This invention relates to improvements in the supporting and guiding devices which are employed to sustain conveyer belting, particularly the rubber belting which is now largely used for the carrying of materials from place to place.

Figure 1 is a side elevation of one of the supporting elements in an apparatus embodying my improvements, showing the belt, in section. Fig. 2 is a plan view of the parts illustrated in Fig. l. Fig. 3 is a modified arrangement for lubricating the rollers. Fig. 4 is a cross section through the bridge casting of the form shown in Fig. 3. Fig. 5 is a cross section through the bridge casting of the form shown in Fig. I.

In the drawings A-A indicate inclined rollers, and B a horizontal roller or rollers, of which one is generally combined with two of the inclined rollers to constitute one of the supporting elements.

A1 indicates the supporting device or bracket for Carrying rollers A, and D and D1 indicate two shafts upon which the three rollers are supported; E-E represent wood or steel frames.

The inclined rollers A are each liournaled upon an inclined shaft A1, which is tubular or pipedike. Each of these shafts is mount` ed in a socket 2, formed integral with the bridge casting II., This casting extends from one of the shafts D, D1 to the other, parallel to the central longitudinal vert-ical plane of the conveyer, all the rollers of each supporting element being sustained on the two shafts D and D1. The horizontal rollers turn on one of the shaft D, D1 which also supports one end of the bridge castings I-I H with the inclined pulleys thereon. By forming all of these parts of the support for the pulleys or rollers in this way, I provide for insuring that the mountings shall all be true in relation to each other. It will be understood that in order to hold the belt properly in place upon the rollers, it is necessary that vthey should be mounted with mathematical accuracy. Vhen the bracket or holder is constructed in the way which I have devised, the shaft holders or sockets at ft can be ma` chined so that the shaft apertures therein `shall be perfectly parallel to the plane of the axes of the sockets 2.

In the constructions where the rollers A are mounted in independent brackets it has been found that from the warping or twisting of the frame-structure they are thrown out of the desired alinement, and consequently the belt does not run uniformly on the two sides of its center line. Vhen the carrier or bracket for the supporting element is made in the way herein provided, both edges of the belt are carried with uniformity. Another advantage attained by having the roller support formed in the way which I have described is that I-can effecta uniform distribution of the lubricant over all surfaces where relative movement occurs.

K indicates the cups or receptacles 'for initially receiving the oil or grease. These are secured to the upper ends of the inclined shafts A1. Each of these has a longitudinal passage 9 (the shaft being preferably formed of a sect-ion of tubing). The chamber or duct in the shaft communicates with the lubricant channel F, which is formed by coring the casting II. These channels F in turn communicate with the chamber 92 in the shaft D upon which the roller B is mounted. This shaft D carrying pulleys B may also be a tube section, as shown at D2 in Figs. 3 and 4t, firmly secured by set screws in the sockets or bearings 5. One end is closed by a plug 8, and it is provided with apertures registering with the channels F. To the other end is connected the grease or oil cup K. At 6 there are apertures formed through the wall of this shaft to permit the lubricant to reach the exterior surface of the shaft and lubricate the hub of the pulley B which revolves thereon.

Vhe'n the parts are constructed and arranged in the way which I have shown and described, it will be seen that the grease lubricant tends to pass through the hollow shafts D2 and thence across, through the channels F to the interior of the hollow shaft A1. Some of it escapes through the aperture 7 to the exterior surface of the shafts A1 for lubricating the pulleys A, and some of it, as above described, passes through the apertures 6, to lubricate the pulley B.

' What I claim is:

1. In a belt conveyer support, the combination with-.side frame members and a pair of oppositely inclined pulleys having their axes in a transverse vertical plane of a horizontal pulley Whose axis is located in a vertical plane at one side of and parallel to the plane of the inclined pulleys, and supporting means for said pulleys consisting of tWo cross members, one of which constitutes the shaft of the horizontal pulley projected suiciently to rest upon said side :trame members, and the other cross member being parallel thereto, and connecting bridges carried by said cross-members on which the spindles of the inclined pulleys rest, substantially as described.

2. In a belt conveyer support, the combination of tvvo rods suitably supported at right angles to the longitudinal center line of the belt conveyer, a horizont-al roller journaled upon one of said rods, a. plurality of bridge castings connecting and supported upon said rods, and inclined pulleys supported upon said bridge castings, respectively, at one side of the vertical plane of the axis of said horizontal pulley, said pulleys, When assembled, constituting a concave support for a belt conveyer running thereover.

In testimony whereof I affix my signature,

in presence of two Witnesses.

- SAMUEL F. J OOR. Vitnesses:

FRANK VALsI-I, ALICE G. DUFFY.

Copies of this patent may be obtained for five cents each, by addressing the- Commissioner of Patents, Washington, D. C. 

